PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5021BM0150Valve,check

Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc · NSN 4820-00-203-7675 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-203-7675 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-203-7675. Primary manufacturer part number: 5021BM0150.
Features
  • Valve,check — FSC 4820
  • 10 verified cross-references
  • Primary manufacturer: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-00-203-7675, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. This item has 10 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersService Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings (CAGE 91643); The Walworth Company (CAGE 63686); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349); Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (CAGE 76364)
Technical Specifications
ParameterValue
NSN4820-00-203-7675
Primary Part Number5021BM0150
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMilwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5305-00-053-1088MS35199-60 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5998-00-236-3280101188 INTERCHANGEABLE
Circuit Card Assembly
Aimtron Systems, Llc
2915-00-433-8992102316 INTERCHANGEABLE
Housing,fuel Control
Triumph Engine Control Systems Llc
5970-00-628-7701 INTERCHANGEABLE
Insulator,bushing
4940-01-018-0344 INTERCHANGEABLE
Guard,monorail Machine
4320-01-112-6320923087 INTERCHANGEABLE
Parts Kit,rotary Pump
Eaton Aerospace, Llc Dba Jackson South
5305-01-150-1191101188 INTERCHANGEABLE
Screw,machine
Astra Associates Inc
4820-01-459-9331101188 11/4INCH INTERCHANGEABLE
Valve,check
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
5365-01-529-2366MT22 1079 INTERCHANGEABLE
Ring,externally Threaded
Marmon-Herrington Company
7690-01-673-0792101188 INTERCHANGEABLE
Decal
Equipment Distributors, Inc. Dba Equipment Distributors Inc
Cross-Reference Index
Part NumberManufacturer
101186 Service Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings (USA)
DS1621511-2IN F The Walworth Company (USA)
101186C1D882039098 Service Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings (USA)
101188 Service Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings (USA)
MILV17547 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5021BM0150 PRIMARY Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
5021B101186CID882039098 Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
5021B101186CID882039098 Service Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings (USA)
DS1621511-2INFL The Walworth Company (USA)
5021-B/101188REVA/8820339423 Service Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings (USA)
Related Parts
5305-00-053-1088INTERCHANGEABLE
SCREW,MACHINE
MS35199-60
5998-00-236-3280INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
101188
2915-00-433-8992INTERCHANGEABLE
HOUSING,FUEL CONTROL
102316
5970-00-628-7701INTERCHANGEABLE
INSULATOR,BUSHING
4940-01-018-0344INTERCHANGEABLE
GUARD,MONORAIL MACHINE
4320-01-112-6320INTERCHANGEABLE
PARTS KIT,ROTARY PUMP
923087
5305-01-150-1191INTERCHANGEABLE
SCREW,MACHINE
101188
4820-01-459-9331INTERCHANGEABLE
VALVE,CHECK
101188 11/4INCH
5365-01-529-2366INTERCHANGEABLE
RING,EXTERNALLY THREADED
MT22 1079
7690-01-673-0792INTERCHANGEABLE
DECAL
101188
3040-01-703-1495INTERCHANGEABLE
HOUSING,CYLINDER,PNEUMATIC ACTUA
1011-86

Frequently Asked Questions

What is NSN 4820-00-203-7675?

NSN 4820-00-203-7675 is a Valve,check, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-203-7675?

NSN 4820-00-203-7675 has 10 cross-referenced part numbers: 101186 (Service Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings), DS1621511-2IN F (The Walworth Company), 101186C1D882039098 (Service Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings), 101188 (Service Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings), MILV17547 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.

What NSN replaces 4820-00-203-7675?

There are 11 known substitutes for 4820-00-203-7675: 5305-00-053-1088, 5998-00-236-3280, 2915-00-433-8992 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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